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Research suggests that DDT exposure in the 1950s might bear responsibility for today's obesity epidemic. The pesticide's endocrine-disrupting properties could potentially cause obesity in future generations, at least according to the results of tests using lab rats. "We're looking at the possibility of metabolic disease in every generation to come," says researcher Michael Skinner.

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Jamaica has unveiled plans to add 150 megawatts of renewable energy capacity this year, including a 36-MW wind farm. The country has also set a goal for renewables to account for 20% of total generating capacity by 2030.

A group of investors is asking energy giants to disclose the potential risks associated with carbon-intensive oil, gas and coal projects, arguing that emissions limits could affect the economics of fossil fuels. "We came to this with the goal of really changing the investment behavior of these companies in the mid- to long-term horizon," said Andrew Logan, director of Ceres' oil program.

Wal-Mart operates 150 solar installations and plans to generate or procure 7 billion kilowatt-hours of renewable energy a year by 2020. The company's green-energy plan is designed to be self-sustaining, and last year alone the retailer saved $2 million by generating solar energy.

Dow Chemical is an industry leader when it comes to disclosing climate-related information, but the company's regulatory filings aren't specific or detailed enough to provide investors with actionable climate information, argues Jim Coburn of Ceres. "Investors need to hear about specific material risks and opportunities to make better investing decisions," he writes.

A recent Weinreb Group report highlighted the top green business leaders, but they were all men. It's true that women are underrepresented in top CSR positions, but that won't be the case for long, writes Andrea Learned. "This is where we are headed, and where a balance of men and women in sustainability leadership positions become the new norm," she writes.